DTC Troubleshooting: 11-3x

DTC 11-3x (11-30 to 11-39, 11-3A to 11-3F):
Short to Another Wire or Decreased Resistance in Front Passenger's Airbag First Inflator (RHD type)

Special Tools Required
SRS inflator simulator (  07SAZ-TB4011A)
 

SRS short canceller (  070AZ-SAA0100)
 
SRS simulator lead C (  07TAZ-SZ5011A)
 


1.Erase the DTC memory.

2.Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator stay on, and is DTC 11-3x indicated?


YES - Go to 3.


NO - Intermittent failure, system is OK at this time.Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC troubleshooting index.


3.Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.

4.Disconnect the front passenger's airbag 2P connector (A) from the dashboard wire harness B.

 

5.Connect the SRS inflator simulator (2 W connectors) and simulator lead C to dashboard wire harness B.

6.Reconnect the battery negative cable.

7.Erase the DTC memory.

8.Read the DTC.

Is DTC 11-3x indicated?


YES - Go to 9.


NO - Short in the front passenger's airbag first inflator; replace the front passenger's airbag.n

9.Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.

10.Disconnect SRS unit connector A (28P) from the SRS unit.

11.Disconnect the SRS inflator simulator from the SRS simulator lead.

12.Connect the SRS short canceller (070AZ-SAA0100) to No. 9 [or No. 7] and No. 10 [or No. 8] terminals, and the No. 3 and No.4 terminals of the SRS unit connector A (28P).
[ ]: RHD type

13.Check resistance between the terminals of the SRS simulator lead. There should be an open circuit or at least 1 MW.

 

Is the resistance as specified?


YES - Faulty SRS unit or poor contact at SRS unit connector A (28P) and the SRS unit. Check the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit.n


NO - Short in the dashboard wire harness B; replace the dashboard wire harness B.n